fix: restore CLI validation and test baseline (#1857)

Fixed lazy CLI helper imports for tunnel flows
Restored update command version detection
Made web test and dead-code commands run reliably

packages/web/test/bun-test-shim.ts

@@ -0,0 +1,31 @@
+import {
+  afterAll,
+  afterEach,
+  beforeAll,
+  beforeEach,
+  describe,
+  expect,
+  it,
+  test,
+  vi,
+} from 'vitest';
+
+const mock = Object.assign(
+  <T extends (...args: never[]) => unknown>(implementation?: T) => vi.fn(implementation),
+  {
+    module: vi.mock,
+  },
+);
+
+export {
+  afterAll,
+  afterEach,
+  beforeAll,
+  beforeEach,
+  describe,
+  expect,
+  it,
+  mock,
+  test,
+  vi,
+};